Manufacturing and High Heat Flux Testing of Brazed Flat-Type W/CuCrZr Plasma Facing Components

被引：2
|
作者：
练友运 [1 ]
刘翔 [1 ]
封范 [1 ]
陈蕾 [1 ]
程正奎 [1 ]
王金 [1 ]
谌继明 [1 ]
机构：
[1] Center for Fusion Science,Southwestern Institute of Physics
来源：
Plasma Science and Technology | 2016年 / 18卷 / 02期
基金：
中国国家自然科学基金;
关键词：
W/CuCrZr mock-up; vacuum casting; vacuum brazing; high heat flux tests;
D O I：
暂无
中图分类号：
TG454 [钎焊];
学科分类号：
080201 ; 080503 ;
摘要：
Water-cooled flat-type W/Cu Cr Zr plasma facing components with an interlayer of oxygen-free copper（OFC） have been developed by using vacuum brazing route.The OFC layer for the accommodation of thermal stresses was cast onto the surface of W at a temperature range of 1150oC-1200 oC in a vacuum furnace.The W/OFC cast tiles were vacuum brazed to a Cu Cr Zr heat sink at 940 oC using the silver-free filler material Cu Mn Si Cr.The microstructure,bonding strength,and high heat flux properties of the brazed W/Cu Cr Zr joint samples were investigated.The W/Cu joint exhibits an average tensile strength of 134 MPa,which is about the same strength as pure annealed copper.High heat flux tests were performed in the electron beam facility EMS-60.Experimental results indicated that the brazed W/Cu Cr Zr mock-up experienced screening tests of up to 15 MW/m;and cyclic tests of 9 MW/m;for 1000 cycles without visible damage.
引用
收藏
页码：184 / 189
页数：6
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